ankit.tayal560 - type start /? in a windows command prompt for more information on what marto is trying to impart.

basically there are 3 ways to start new processes in perl:

• open - open (IN, "program.exe|") or die "couldn't start program.exe"
• system - system('program.exe')
• backticks or qx - qx(program.exe) or `program.exe`

careful what you do when running programs that require external input from users, but in a nutshell what's happinging in system('start "" "' . $calc . '"'); is the same as system('program.exe arg1');

Cheers,
Shadowsong

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